Add the equations to find the value of xxx.
2x+5y=4 2x + 5y = 4 2x+5y=4 7x−5y=−1 7x - 5y = -1 7x−5y=−1Hence, find the value of yyy.
217 exam-style questions on WJEC GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.